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11.发明授权Method and apparatus for three-dimensional deconvolution of optical microscope images 失效光学显微镜图像三维去卷积的方法和装置
公开(公告)号：US6166853A
公开(公告)日：2000-12-26
申请号：US781785
申请日：1997-01-09
摘要： An adaptive structure of a Wiener filter is used to deconvolve three-dimensional wide-field microscope images for the purposes of improving spatial resolution and removing out-of-focus light. The filter is a three-dimensional kernel representing a finite-impulse-response (FIR) structure requiring on the order of one thousand (1000) taps or more to achieve an acceptable mean-square-error. Converging to a solution is done in the spatial-domain and therefore does not experience many of the problems of frequency-domain solutions. Alternatively, a three-dimensional kernel representing an infinite-impulse-response (IIR) structure may be employed. An IIR structure typically requires fewer taps to achieve the same or better performance, resulting in higher resolution images with less noise and faster computations.
摘要翻译： 维纳滤波器的自适应结构用于对三维宽视野显微镜图像进行去卷积，以改善空间分辨率和去除离焦光。 滤波器是表示有限脉冲响应（FIR）结构的三维核，其需要大约一千（1000）个抽头或更多次以达到可接受的均方误差。 融合到解决方案在空间域中完成，因此不会遇到频域解决方案的许多问题。 或者，可以采用表示无限脉冲响应（IIR）结构的三维核。 IIR结构通常需要更少的抽头才能实现相同或更好的性能，从而产生更高分辨率的图像，噪点更小，计算更快。
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12.发明授权Quadratic optical processor for reducing multiplicative noise and other uses 失效二次光学处理器，用于减少乘法噪声和其他用途
公开(公告)号：US5337170A
公开(公告)日：1994-08-09
申请号：US921541
申请日：1992-07-29
申请人： Jihad Khoury , Charles L. Woods
发明人： Jihad Khoury , Charles L. Woods
CPC分类号： G03H1/0248 , G03H1/02 , G06E3/003 , G03H1/0005 , G03H2001/026 , G03H2001/0268 , G03H2260/36
摘要： A degenerate four-wave mixing arrangement employs a photorefractive crystal as a real time holographic recording medium to record a hologram of the noisy optical signal. The signal passes through the crystal and is phase conjugated by a self pumped barium titanate phase conjugator, and the resulting phase conjugate beam reads out the hologram and multiplicative noise is substantially reduced in the optical output signal.
摘要翻译： 退化的四波混频装置采用光折射晶体作为实时全息记录介质来记录噪声光信号的全息图。 信号通过晶体并且通过自泵浦的钛酸钡相位共轭体进行相位共轭，并且所得到的相位共轭光束读出全息图，并且在光输出信号中乘法噪声基本上减小。
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公开(公告)号：US5220622A
公开(公告)日：1993-06-15
申请号：US616871
申请日：1990-11-21
申请人： Robert W. A. Scarr
发明人： Robert W. A. Scarr
CPC分类号： G06E3/003
摘要： A holographic optical correlator includes a matched optical filter and control means therefor including a memory. In use searching for occurrences of an item to be found is carried out by the control means controlling the input and Fourier transform planes of the filter and a coherent light source for parallel optical processing of the memory content and the output plane of the filter provides information to the control means as to the location in the memory of occurrences of said item. The complexity of the detector means in the output plane can be reduced in comparison with previous proposals by moving the item to be sought step-wise across the input plane. The detector means then may comprise a single column of detectors which are required to detect a peak correlation signal within a predetermined range.
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公开(公告)号：US5191392A
公开(公告)日：1993-03-02
申请号：US757054
申请日：1991-09-09
申请人： John L. Johnson
发明人： John L. Johnson
摘要： The White Light Optical Fourier Transform Device comprises symmetrical wedges of uniaxial birefringent crystal placed on either side of a half-wave plate to induce an angle between the wavefronts of the polarized components of the beam travelling through the device. The wavefront tilt angle of the output beam is shown to be linearly proportional to the angle of incidence. This is sufficient to generate the necessary phase factor for a Fourier transform of the incident intensity image.
摘要翻译： 白光光学傅立叶变换装置包括放置在半波片的任一侧的单轴双折射晶体的对称楔，以在穿过该装置的光束的偏振分量的波前引起角度。 输出光束的波前倾斜角显示为与入射角成线性比例。 这足以产生用于入射强度图像的傅里叶变换的必要的相位因子。
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公开(公告)号：US5136669A
公开(公告)日：1992-08-04
申请号：US670549
申请日：1991-03-15
申请人： David W. Gerdt
发明人： David W. Gerdt
CPC分类号： G02F1/3131 , G06E3/003 , G02F1/0126 , G02F1/0131 , G02F2202/13
摘要： The coupler includes a waist region formed by merging and fusing a plurality of optical fibers with the waist region encapsulated in photorefractive encapsulating material. The index of refraction of the encapsulating material is modulated by applying illumination thereto, so as to vary the coupler output ratio. The applied illumination can direct the coupler output from one output fiber to another output fiber thereby providing an optically actuated switch. The illumination applied to the encapsulating material can direct a large optical power signal applied to an input fiber from one output fiber to another output fiber thereby providing an optical amplifier analogous to a transistor. One of the output fibers of the element can be utilized to provide the encapsulating material illumination thereby providing an optical feedback oscillator. Bias illumination applied to the encapsulating material results in a narrow band of a broadband input optical signal to be directed to an output fiber thereby providing an externally tuned spectrometer or optically tuned wavelength division demultiplexer. An input optical signal can correlate with the illumination applied to the encapsulating material to provide an optical correlator. In an element with encapsulating material that is both photoelastic and photorefractive, or both bend sensitive and photorefractive, the photorefractive effect can be utilized to bias the device to a predetermined point on the operating curve irrespective of applied stress. Networks of the optical signal processing elements can be interconnected to provide computing systems.
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16.发明授权Spatial frequency multiplexed coherent optical processor for calculating generalized moments 失效用于计算广义矩的空间频率复用相干光学处理器
公开(公告)号：US4505544A
公开(公告)日：1985-03-19
申请号：US387133
申请日：1982-06-10
CPC分类号： G06E3/003
摘要： An optical processor that can compute the moments of a two-dimensional image in parallel. The image is placed at the plane of a holographic mask which is disposed in the front focal plane of a Fourier-transforming lens and each of the desired moments is found at a respective one of a plurality of photodetectors arrayed in the back focal plane of the lens.
摘要翻译： 可以并行计算二维图像的力矩的光学处理器。 将图像放置在设置在傅里叶变换透镜的前焦平面中的全息掩模的平面上，并且在多个光电检测器中的每一个处找到排列在 镜片。
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公开(公告)号：US4174885A
公开(公告)日：1979-11-20
申请号：US869678
申请日：1978-01-16
申请人： Bernard W. Joseph , Aaron D. Gara
发明人： Bernard W. Joseph , Aaron D. Gara
摘要： In a coherent optical correlation system for detection of object images at unknown angular orientations, a holographic spatial filter in the transform plane of the system is rotated until a correlation beam is produced. The spatial filter is mounted on a rotating cylinder which carries a first mirror placed in the path of the correlation beam emitted from the filter and disposed to direct the beam toward the axis of rotation of the cylinder and a second mirror on the axis and intercepting the beam for directing the correlation beam substantially along the axis. A motor drives the cylinder about its axis and an optical encoding device associated with the rotating cylinder provides an electronic indication of the cylinder orientation at any given instant.
摘要翻译： 在用于以未知角度取向检测物体图像的相干光学相关系统中，旋转系统的变换平面中的全息空间滤波器，直到产生相关光束。 空间滤波器安装在旋转圆柱体上，该旋转圆柱体承载放置在从滤光器发射的相关光束的路径中的第一反射镜，并设置成将光束朝向圆柱体的旋转轴线和第二反射镜引导到轴线上， 光束用于基本上沿轴线引导相关光束。 电动机围绕其轴驱动气缸，并且与旋转气缸相关联的光学编码装置在任何给定时刻提供气缸方向的电子指示。
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公开(公告)号：US4071907A
公开(公告)日：1978-01-31
申请号：US731471
申请日：1976-10-12
申请人： David Paul Casasent
发明人： David Paul Casasent
CPC分类号： G06K9/745 , G01S13/9005 , G01S7/292 , G06E3/003
摘要： A real-time radar processor utilizing a coherent optical system for provig target fine range and Doppler/azimuth angle data with increased signal-to-noise and signal-to-clutter ratios. Radar signals detected by a linear phased array or successive echo signals detected by the receiver are arranged in a 2-D input format for parallel processing in a multi-channel 1-D optical correlator. Target range and azimuth angle reference data may be stored in a matched spatial filter hologram or recorded in a 2-D format similar to that of the detected radar signals according to which of three different correlation configurations are employed in the optical system. The coordinates of the correlation peak in the output plane of the correlator are proportional to the target's fine range and Doppler/azimuth angle, depending upon the type of radar signals being processed.
摘要翻译： 利用相干光学系统的实时雷达处理器，用于提供具有增加的信噪比和信噪比的目标精细范围和多普勒/方位角数据。 由线性相控阵列检测到的雷达信号或由接收机检测到的连续回波信号以2-D输入格式排列，用于多通道1-D光学相关器中的并行处理。 目标范围和方位角参考数据可以存储在匹配的空间滤波全息图中，或者根据根据在光学系统中采用三种不同的相关配置中哪一种的检测雷达信号类似的二维格式来记录。 相关器的输出平面中的相关峰的坐标与目标的精细范围和多普勒/方位角成正比，这取决于正在处理的雷达信号的类型。
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公开(公告)号：US3816735A
公开(公告)日：1974-06-11
申请号：US23474972
申请日：1972-03-15
申请人： US NAVY
发明人： BROMLEY K
CPC分类号： G06E3/003
摘要： A multi-channel optical correlation system employs non-coherent light to illuminate a mask having a plurality of linearly disposed channels, each of which has recorded information defined by variations in opacity along its linear length. The noncoherent light source is modulated as a function of an unknown input signal and an image of the illuminated mask is formed in a selected image plane. The transmitted image is swept along the axes of the linearly disposed channels in synchronism with the time period of the unknown input signal and means is provided for temporally integrating the light intensity of the swept image along the linear length of each channel. A peak intensity of illumination within any of the channels of the resultant integrated image of the mask at the image plane indicates substantial correlation of the input signal with the recorded information in that particular channel.
摘要翻译： 多通道光学相关系统使用非相干光来照亮具有多个线性布置的通道的掩模，每个通道具有沿其线性长度的不透明度变化定义的记录信息。 作为未知输入信号的函数调制非相干光源，并且在所选择的图像平面中形成照明掩模的图像。 与未知输入信号的时间周期同步地沿着线性布置的通道的轴线扫描发送的图像，并且提供用于沿着每个通道的线性长度对扫描图像的光强度进行时间积分的装置。 在掩模在图像平面上的所得到的集成图像的任何通道内的照明的峰值强度指示输入信号与该特定通道中记录的信息的实质相关。
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公开(公告)号：US3742495A
公开(公告)日：1973-06-26
申请号：US3742495D
申请日：1971-09-24
发明人： DIAMANTIDES N
CPC分类号： G06E3/003 , G01S5/0009 , G01S7/04 , G05D1/0016
摘要： A drone aircraft is guided over a desired flight path wherein line map correlation provides x and y offsets from the desired fixed point. The x, y offset signals are used to drive the actuators of the drone''s control surfaces and also provide positional information to a monitored display at the control station.
摘要翻译： 无人驾驶飞机被引导到期望的飞行路径上，其中线图相关性提供与期望的固定点的x和y偏移。 x，y偏移信号用于驱动无人机控制面的执行器，并向控制站的监视显示器提供位置信息。
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